US PATENT SUBCLASS 72 / 388
.~.~.~ Cantilever bender

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

380  DF  BY RELATIVELY MOVABLE OFFSET TOOL-FACES (E.G., FOR BENDING OR DRAWING) {4}
386  DF  .~ With tool motion in fixed path {3}
387  DF  .~.~ Pivotal motion only {1}
388.~.~.~ Cantilever bender

DEFINITION

Classification: 72/388

Cantilever bender:

(under subclass 387) Device wherein the work- engaging face portion(s) of one relatively movable tool is disposed at a greater radial distance from said fixed axis than the work-engaging face portion(s) of the other tool.

(1) Note. A typical device of this subclass bends the unsupported projecting end portion of a rod or pipe into arcuate shape by the travel of a sweep-arm-carried tool along the outer side of the work, while another portion of the work is restrained in a groove or socket, or by spaced face portions, of a fixed tool element.

(2) Note. Similar apparatus may be found in subclasses 319+ where the work is held in a (per se) nondeforming clamp; and in subclass 310 where the work-clamp is pivoted.

SEE OR SEARCH THIS CLASS, SUBCLASS:

217+, for a sweep-arm bender comprising a work-engaging roller instead of a sliding shoe as the pivoted bending tool.